/* Obriy landing page — dark "horizon / causal chains" hero.
   Translated from the Claude Design component (Obriy.dc.html) to plain CSS. */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  background: oklch(0.16 0.012 255);
}

body {
  overflow: hidden;
}

a {
  color: oklch(0.82 0.11 220);
  text-decoration: none;
}

a:hover {
  color: oklch(0.9 0.09 220);
}

@keyframes obFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.stage {
  position: fixed;
  inset: 0;
  overflow: hidden;
  background: oklch(0.16 0.012 255);
  font-family: "Space Grotesk", sans-serif;
}

.net {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Warm glow rising from the horizon at the bottom of the frame. */
.glow {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 38vh;
  pointer-events: none;
  background: linear-gradient(
    to top,
    oklch(0.62 0.11 55 / 0.12),
    transparent
  );
}

/* The horizon line itself — a thin warm-to-cool gradient. */
.horizon {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(
    to right,
    transparent,
    oklch(0.72 0.12 60 / 0.5) 30%,
    oklch(0.78 0.12 220 / 0.5) 70%,
    transparent
  );
}

.content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  pointer-events: none;
}

.eyebrow {
  animation: obFade 0.9s ease both;
  animation-delay: 0.05s;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: oklch(0.72 0.03 250);
}

.eyebrow .rule {
  width: 22px;
  height: 1px;
  background: oklch(0.5 0.02 250);
}

.eyebrow .native {
  color: oklch(0.6 0.02 250);
}

.title {
  animation: obFade 0.9s ease both;
  animation-delay: 0.15s;
  margin-top: 26px;
  font-weight: 500;
  font-size: clamp(84px, 17vw, 260px);
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: oklch(0.97 0.006 250);
}

.lede {
  animation: obFade 0.9s ease both;
  animation-delay: 0.28s;
  margin-top: 30px;
  max-width: 660px;
  font-size: clamp(17px, 2.1vw, 23px);
  line-height: 1.5;
  color: oklch(0.8 0.012 250);
  text-wrap: pretty;
}

.cta {
  pointer-events: auto;
  animation: obFade 0.9s ease both;
  animation-delay: 0.42s;
  margin-top: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid oklch(0.4 0.02 250);
  border-radius: 999px;
  background: oklch(0.22 0.012 255 / 0.5);
  backdrop-filter: blur(6px);
  transition: border-color 0.25s, background 0.25s;
}

.cta:hover {
  border-color: oklch(0.78 0.12 220);
  background: oklch(0.26 0.02 250 / 0.6);
}

@media (prefers-reduced-motion: reduce) {
  .eyebrow,
  .title,
  .lede,
  .cta {
    animation: none;
  }
}